Ice itcrefeigebatim machine



(No ModelJ 2 Sheets--Shet 1. 1). L. HOLDEN! ICE ANP REPRIGERATING MACHINE. No 291,477.

Patented Jan; 1, 1884.

Inventor:

(No Model.) 1 h Sheets-Sheet 2.

D. L. HOLDEN.

1 120; A QQ EFRIGERAT NG MACHINE. Q

No. 291,477. Patented Jan. 1, 1884.

N. PETERS, Phaio-Lnhognpllor. wmingtun. 0.0

. 'accompanying'drawin 7 co 2 consistse chine.

5 within the generator, to receive an with pipes at a a.

UNITED STATES AT NI Brian:

DANIEL L. HOLDEN, or CINCINNATI, OHIO, ASSIGNOR oF'Two-THInDsTO r. T. MILLER AND T. n. LIVEZEY.

ICE AND REFR SPECIFICATION forming part of Letters Patent No. 291,477, dated January .1, 1 884.

Application filed October 1, 1883.

To all whom it may concern:

Be it known that I, DANIEL L. HOLDEN, o

5 pr ovement in Ice and Refrigerating Machines,

.of which thefollowing is a full, clear, and ex act specification, reference being had to the gs, forming part of this specification, in which I I TO Figure 1 is a vertical section of my machine.

I Fig. 2 is a horizontal section, showing c011- denser, absorber, and cooler, and pump se- I curely attached to and supported by the gene'rator. Fig 3 is a vertical section of con- :15 gealer and its connecting-pipes.

Si'milarletters of reference in the several drawings indicate the same parts.

ing machines of the absorption class; and it 'to each other that the machine is compact and "portable; I y

"Second, in locating a cooler or devices for cooling within the generator and the usual condenser in ice-machines. These devices render the recipient of the ordinary machines unnecessary, and I do not use one in my ma- The cooling devices shown are the pipes d, within the generator A, and the j acket c, aboutthe top of the generator A, Fig. .1.

Third, in the use of the broken pieces of any substance which is non-corrosive by ammonia d break up the incoming rich liquor.

The construction of mymachine, reference being had to the accompanying drawings, is as follows: A generator, A, Fig. 1, is fitted These pipes are of the internal-circulating coil type, as are all the other pipes in my machine. Steam may be admitted to these pipes for heating purposes, and water may also be admitted for cooling 5 purposes. The rapid cooling of the liquor within the generator is of great importance in the practical Working of a refrigerating-machine. I The generator is fitted with a grating, 12. On the grating rest pieces of tin or any tor and the condenser.

(No model.)

substance thatis not destroyed by the action of heated ammonia, which fill the generator as far as may be desired towardthe top. I In the drawings the pieces of tin occupy about one third of the distance from the grating b to the top of the generator. The generator is fitted within with cooling-pipes d, and outside with the jacket 0, to afford a water-space around and outside the top of the generator. This cooling device I claim as new, both in. the machinery and in the process of refrigeration.

In ice and refrigerating machines of ordinary construction there is a vessel, called the recipient, interposed between the genera.-

I do not make use of a recipient, but by means of the pipes d and 6 5 jacket 0 condense the steam mingled with the g'as in thegenerator, and pass the dehydrated gas immediately into the condenser E. This cooling device is not found in any ice-machine with whichI am acquainted. It operates as follows: The ammoniacal gas rises to the top of the generator column, mixed with steam. This mixture ordinarily goes into a recipient, and thence into a condenser; but in my machine the steam is condensed by the above-described cooling device, and the water thus dehydrated drops back in the generator-column. This is done without liquefying the ammoniagas, as steam condenses at a lower temperature than the ammoniacal gas. By the use of so this interposed cooler no water is allowed to get into the condenser and none threfore gets into the congealer. It follows from this that the ammonia is more completely deprived of its water of solution during the process of re- 85 frigeration, and a better result is obtained from a given quantity of ammonia, in my machine than in the ordinary machines in use, which do not thus separate the steam from thegas.

It is of great practical advantage to prevent 0 water getting into the congealer, first, as its presence frequently leads to the bursting of this part of the machine; second,ifthere be water in the congealer and the gas comes slowly, the water will absorb it and heat the pipes. Apipe, 5 e, leads from the top of the generator to the condenser 13. Condenser B is surrounded by a jacket, 0 A small pipe, f, leads from the condenser to the congealer C, Fig. 3, Sheet 2. A pipe, 9, leads from the congealer to the absorber D. Fig. 1. The absorber D is surrounded by a jacket, c ;1;;-f- A small rich-liquor pipe, Fig. 1, leads from the bottom of the absorber D to the pump F, by which the rich liquor is forced into the generatorA through the pipe 9, having the nozzle K. The pump F is similar in construction to the pump patented to me March 6, 1877, and numbered 188,137.

In absorption ice and refrigerating machines the water charged with ammonia is called rich liquor, and the water deprived of its ammonia is called poor liquor.

Having described the course of the ammonia to the absorber D, I now proceed to describe the course of the poor liquor to the absorber. The gas and water meet at the absorbe'r, and under the influence of cold unite to form richliquor of the strength of the original solution. As the ammonia is liberated from the water of the solution in the generator by the action of heat, and passes off to the congealer and thence to the absorber, the water freed from ammonia is led off through the pipe h from the bottom of the generator A, Fig. 1, into the cooler E, which is a pipe filled with internal-circulating coil-pipes, and having the jacket 0 about it.

From the top of the cooler E is a pipe, Z, leading within the absorber, having the nozzle K The water used for cooling the several parts of the machine is introduced throughpipe m, Fig. 1. From pipe m water may be introduced into pipes at a a, when required through pipe on" by turning the stop-cock 19. Through pipem, which may be simply an extension of pipe m, water is introduced into the internal pipe, m of the condenser E, whence it runs through pipe it into the pocket c",- thence through pipe n" into the cooling-pipes d d in top of generator A; thence through the pipe n into jacket 0, and is thence discharged through pipe P. The water for cooling the absorber D, Fig. 1, is led from pipe m at the point x,into the bottom of the absorber D, and thence passes into the cooling-pipes; thence into the chamber P,near the bottom of the absorber; thence throughfthe pipe m into the jacket 0",- thence through the small pipe a into the pipes of the cooler; thence through the pipe 01. into the jacket 0, and is discharged through the outlet-pipe n. When water is plenty,it may be introduced directly and from difi'erent pipes into any or all the parts of this machine.

It will be seen, reference being had to the accompanying drawings, that the condenser B, absorber D, cooler G, and pump F, Fig. 1, are secured to and supported by the generator. The machine is thus made portable, and may be connected to the congealer by means of the flanges u and a, Fig. 3, in the pipesf and g.

I am aware that it is old to pass pipes into chambers for the purpose of connecting the pipes through such chambers. This construction differs from internal-circulation pipes in I which two pipes are employed-an inner and outer-the outer pipe forming the means by which the inner pipe is connected to the pipes or chambers beyond.

I claim- 1. In an absorption ice and refrigerating machine, a generator having cooling devices within and about its upper end, substantially as described.

2. In the generator of an absorption ice or refrigerating machine, the combination of a grating and pieces of tin or other substance not destroyed by heated ammonia resting on said grating, substantially as described.

3. In an absorption ice or refrigerating machine, the combination of a generator, a condenser, an absorber, and a cooler securely attached to and supported by said generator, substantially as described.

4. In an absorption ice or refrigerating machine, the combination of a generator, a condenser, an absorber, a cooler, and a pump securely attached and supported by said generator, substantially as described.

5. In an absorption ice or refrigerating machine, the combination of a generating-chamber and steam-pipes of the internal-circulation type, substantially as described.

6. In an absorption ice or refrigerating machine, the'combination of a generator having cooling devices about its upper end,and a condenser, a congealer, an absorber, and a cooler, substantially as described.

The foregoing specification of my invention signed by me this 28th day of June, A. D. 1883.

DANIEL L. HOLDEN.

Witnesses:

J EPTHA GARRARD, RICHARD L. AYER. 

